Grease-cup.



F. L. SWANBERG.

GREASE CUP.

APPLICATION rum) MAR. 7, 1908.

906,333. Patented Dec. 8, 1908.

WY/27 255 25. [27 wan/021 curely in place without the necessity of pro- E sans FLOYD L; SWANBERG, OF CINCINNATI, OHIO, A SSIGNOR TO D. T, WILLIAMS OF CINCINNATI, OHIO, A CORPORATION OF OHIO Nil VALVE COMPANY,

GEE ASE-CUP.

' no. access.

Specification of Letters Patent.

rammed Dec. a, 1903.

Application filed March 7, 1908. serial No. 419,730.

companying drawings, forming part of this specification.

My invention relates to cups for holding grease for the lubrication of journal bearings and the like, and the purpose of the invention is to'provide a simple, chea and effective means for holding packing or. the cup seviding washers or other retaining means such as have heretofore'been employed, and the invention consists of that novel construction to be hereinafter particularly pointed out and claimedf In the drawings: Figure 1 is a central vertical section of my im roved cup. Fig. 2 is a similar vertical section, of the base of the cup before the insertion of the packing.

1 is the base of the cup provided with a semispherical depression 2 in its upper surface, threaded at its lower end 3 for attachment to the journal bearing and threaded eX- teriorly at its upper end for the reception of the interiorly threaded cap 4.

5 is the central bore through the base for the passage of the grease to the journal bearing.

In order to retain the packing 6, of leather or other suitable materlal, in place, in constructing the base an annular groove 7 is cut so as to leave a fin of metal Sfdr the lower surface of the groove. The packing 6 is then placed in the groove 7 and the fin of metal upset to grasp and hold the packing as shown at 9 in Fig. 1. The packing is'thus held securely in place and in addition to bein securely held, the compression of the pac ring as the metal fin is upset, forces the packing outward so as to form a tight joint with the lower end of the cap 4 thus preventing all leakage.

With this construction no washer or means are required for holding the packing in place, and the cost of production is therefore materially reduced, while at the same time providing a construction which will retain securely and expand the packing to accomplish theresult requlred.

I claim as new and desire to secureby Letters Patentis:

In a grease cup, the combination, with the base provided with an aperture for the passage of the grease to the bearing, and a cap to cover the base "and form aclosed receptacle for the grea'se, there being an annular groove of substantial depth formed in the cylindrical outer surface of the base, a packing. of suitable material mounted in said groove, with a fin of metal forming the lower wall of the groove upset into the packing to hold the acking in place, substantially as described.

. FLOYD Witnesses:

FRANK W. KIMBEL, Bnssrn BEALL.

shown an L. SWANBERG.

55 Having thus described my invention, what 

